Puzzle coffee mug



FIG. 1 is a top/right side perspective view thereof;

FIG. 2 is a bottom/left side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right elevation view thereof; and,

FIG. 8 is a left elevation view thereof.

The ornamental design for a puzzle coffee mug, as shown and described.